Load data for .358 Norma Mag. + .356 | 145gr | LOS RN

.358 Norma Mag. cartridge drawing
LOS logo

Load Specifications

Bullet Manufacturer:LOS
Bullet Weight:145 gr
Bullet Diameter:0.356"
Bullet Length:<<locked>>
Case Length (l3):2.519"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:88 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi

Load data in caliber .358 Norma Mag. with .356 | 145gr | LOS RN bullet and 67 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and ReloadSwiss RS 40.

Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.

Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.

Charge: Powder weight in grains. Start with the minimum load and work up carefully.

FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.

MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.

V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.

z (Powder Burn): Estimated propellant combustion percentage at bullet exit.

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Max Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>84%54,781 psi86%3238 fps100%
Accurate 2015<<locked>>98%56,826 psi89%3350 fps100%
Accurate 2460<<locked>>94%55,883 psi88%3360 fps99.2%
Accurate 2495ᴾ<<locked>>100%48,544 psi76%3271 fps99.9%
Accurate 2520<<locked>>98%56,855 psi89%3415 fps99%
Accurate 4064ᴾ<<locked>>100%45,078 psi71%3228 fps98.2%
Accurate LT-30<<locked>>90%55,361 psi87%3258 fps99.8%
Accurate LT-32<<locked>>90%55,825 psi87%3274 fps98.9%
ADI APS 450<<locked>>82%57,653 psi90%2579 fps100%
ADI AR 2206Hᴾ<<locked>>100%55,912 psi88%3399 fps96.2%
ADI AR 2207<<locked>>88%55,782 psi87%3307 fps100%
ADI AR 2219<<locked>>90%54,665 psi86%3376 fps99.7%
ADI Benchmark 8208<<locked>>98%55,753 psi87%3369 fps97.4%
Alliant AR-Compᴾ<<locked>>100%56,956 psi89%3438 fps100%
Alliant Power Pro 1200-R<<locked>>94%56,463 psi88%3491 fps97%
Alliant Reloder-10x<<locked>>94%56,884 psi89%3376 fps100%
Alliant Reloder-7<<locked>>88%57,290 psi90%3323 fps100%
Baschieri & Pellagri 106<<locked>>90%54,505 psi85%3245 fps99.8%
Hodgdon Benchmark<<locked>>96%55,274 psi87%3314 fps97.9%
Hodgdon BL-C2<<locked>>98%53,954 psi85%3389 fps97.8%
Hodgdon H322<<locked>>94%56,550 psi89%3409 fps99.8%
Hodgdon H335<<locked>>92%54,360 psi85%3369 fps99.2%
Hodgdon H4198<<locked>>88%57,421 psi90%3320 fps99.7%
Hodgdon H4895ᴾ<<locked>>100%56,289 psi88%3415 fps96.9%
Hodgdon LEVERevolutionᴾ<<locked>>100%51,039 psi80%3366 fps96.2%
Hodgdon TrailBossᴾ<<locked>>100%32,953 psi52%2067 fps100%
Hodgdon VARGETᴾ<<locked>>100%54,868 psi86%3363 fps96.5%
IMR 3031ᴾ<<locked>>100%53,911 psi84%3428 fps99.9%
IMR 4198<<locked>>94%57,711 psi90%3346 fps100%
IMR 4227<<locked>>84%57,116 psi90%3271 fps100%
IMR 8208 XBR<<locked>>98%55,753 psi87%3369 fps97.4%
Lovex D073.4<<locked>>88%56,318 psi88%3383 fps98.8%
Lovex D073.5<<locked>>94%56,115 psi88%3363 fps98.3%
Lovex D073.6ᴾ<<locked>>100%54,056 psi85%3379 fps98.7%
Lovex S053<<locked>>84%55,666 psi87%3205 fps100%
Lovex S060ᴾ<<locked>>100%57,217 psi90%3337 fps96.4%
Lovex S062ᴾ<<locked>>100%48,428 psi76%3248 fps96.1%
Norma 200<<locked>>90%57,130 psi90%3356 fps100%
Norma 201ᴾ<<locked>>100%54,476 psi85%3346 fps97.3%
Norma 202ᴾ<<locked>>100%54,723 psi86%3369 fps99.2%
Ramshot Wild Boar<<locked>>98%55,434 psi87%3386 fps96%
ReloadSwiss RS 14ᴾ<<locked>>100%32,953 psi52%2116 fps100%
ReloadSwiss RS 36<<locked>>84%57,653 psi90%3310 fps100%
ReloadSwiss RS 40<<locked>>94%55,941 psi88%3373 fps98.6%
Rottweil R 901<<locked>>98%55,463 psi87%3356 fps99.1%
Rottweil R 902ᴾ<<locked>>100%51,256 psi80%3278 fps96.6%
Shooters World AR Plus<<locked>>88%56,318 psi88%3383 fps98.8%
Shooters World Match Rifleᴾ<<locked>>100%54,056 psi85%3379 fps98.7%
Shooters World Precisionᴾ<<locked>>100%48,428 psi76%3248 fps96.1%
Shooters World Tactical Rifle<<locked>>92%57,000 psi89%3337 fps97.2%
SNPE Vectan BA6 1/2<<locked>>88%56,043 psi88%3031 fps100%
SNPE Vectan SP 10<<locked>>90%55,201 psi87%3379 fps99.2%
SNPE Vectan SP 3<<locked>>92%54,505 psi85%3340 fps99.9%
SNPE Vectan SP 9ᴾ<<locked>>100%54,563 psi86%3363 fps95.8%
SNPE Vectan Tubal 3000<<locked>>98%54,259 psi85%3264 fps99%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%46,731 psi73%3136 fps98.8%
Somchem S321<<locked>>96%57,580 psi90%3415 fps98%
Somchem S335ᴾ<<locked>>100%56,014 psi88%3310 fps99.7%
Vihtavuori N120<<locked>>88%55,724 psi87%3251 fps100%
Vihtavuori N130<<locked>>96%57,522 psi90%3317 fps100%
Vihtavuori N133ᴾ<<locked>>100%56,927 psi89%3317 fps100%
Vihtavuori N135ᴾ<<locked>>100%49,124 psi77%3274 fps99.9%
Vihtavuori N140ᴾ<<locked>>100%51,779 psi81%3284 fps99.1%
Vihtavuori N530<<locked>>98%56,710 psi89%3373 fps97.6%
Vihtavuori N540ᴾ<<locked>>100%50,125 psi79%3268 fps98.5%
Winchester 748<<locked>>98%54,563 psi86%3409 fps98.1%
Winchester StaBALL Matchᴾ<<locked>>100%53,954 psi85%3369 fps96.4%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%48,066 psi75%3123 fps100%
Accurate 2015<<locked>>80%31,981 psi50%2838 fps96.7%
Accurate 2460<<locked>>82%36,970 psi58%2979 fps95.1%
Accurate 2495<<locked>>84%28,108 psi44%2785 fps95.5%
Accurate 2520<<locked>>88%39,856 psi62%3087 fps95.6%
Accurate 4064<<locked>>92%34,577 psi54%2982 fps95.2%
Accurate LT-30<<locked>>80%40,669 psi64%2976 fps97.8%
Accurate LT-32<<locked>>80%41,031 psi64%2982 fps95.9%
ADI APS 450<<locked>>80%55,709 psi87%2549 fps100%
ADI AR 2206H<<locked>>98%52,562 psi82%3340 fps95.4%
ADI AR 2207<<locked>>80%43,540 psi68%3100 fps100%
ADI AR 221964.4 gr80%38,725 psi61%3058 fps97.1%
ADI Benchmark 8208<<locked>>92%46,021 psi72%3182 fps95.3%
Alliant AR-Comp<<locked>>80%29,312 psi46%2848 fps98.2%
Alliant Power Pro 1200-R<<locked>>90%49,284 psi77%3353 fps95.4%
Alliant Reloder-10x<<locked>>80%36,724 psi58%2982 fps98.9%
Alliant Reloder-7<<locked>>80%44,730 psi70%3104 fps100%
Baschieri & Pellagri 106<<locked>>80%39,363 psi62%2953 fps97.8%
Hodgdon Benchmark<<locked>>88%43,163 psi68%3077 fps95.2%
Hodgdon BL-C2<<locked>>92%43,729 psi69%3192 fps95.4%
Hodgdon H322<<locked>>80%35,404 psi55%2969 fps96%
Hodgdon H335<<locked>>80%35,868 psi56%2979 fps95%
Hodgdon H4198<<locked>>80%44,802 psi70%3087 fps98.1%
Hodgdon H4895<<locked>>96%49,545 psi78%3291 fps95.4%
Hodgdon LEVERevolution<<locked>>98%47,848 psi75%3297 fps95.4%
Hodgdon TrailBoss<<locked>>80%24,236 psi38%1850 fps100%
Hodgdon VARGET<<locked>>98%51,372 psi81%3301 fps95.7%
IMR 3031<<locked>>84%31,952 psi50%2933 fps95.6%
IMR 4198<<locked>>80%38,072 psi60%2979 fps99.7%
IMR 4227<<locked>>80%50,676 psi79%3166 fps100%
IMR 8208 XBR<<locked>>92%46,021 psi72%3182 fps95.3%
Lovex D073.4<<locked>>80%42,206 psi66%3114 fps96%
Lovex D073.5<<locked>>86%42,308 psi66%3100 fps95.4%
Lovex D073.6<<locked>>90%38,174 psi60%3061 fps95%
Lovex S053<<locked>>80%49,588 psi78%3110 fps100%
Lovex S060<<locked>>96%50,763 psi80%3219 fps95%
Lovex S062<<locked>>98%45,498 psi71%3186 fps95.3%
Norma 200<<locked>>80%41,684 psi65%3077 fps99.9%
Norma 201<<locked>>94%45,150 psi71%3163 fps95.1%
Norma 202<<locked>>88%37,115 psi58%3012 fps95.5%
Ramshot Wild Boar<<locked>>96%51,692 psi81%3323 fps95.1%
ReloadSwiss RS 14<<locked>>80%24,207 psi38%1893 fps100%
ReloadSwiss RS 36<<locked>>80%50,966 psi80%3205 fps100%
ReloadSwiss RS 4066.7 gr84%40,190 psi63%3061 fps95.2%
Rottweil R 901<<locked>>86%38,624 psi61%3012 fps95.7%
Rottweil R 902<<locked>>96%45,266 psi71%3156 fps95.1%
Shooters World AR Plus<<locked>>80%42,206 psi66%3114 fps96%
Shooters World Match Rifle<<locked>>90%38,174 psi60%3061 fps95%
Shooters World Precision<<locked>>98%45,498 psi71%3186 fps95.3%
Shooters World Tactical Rifle<<locked>>88%49,617 psi78%3209 fps95.7%
SNPE Vectan BA6 1/2<<locked>>80%45,382 psi71%2871 fps100%
SNPE Vectan SP 1066.6 gr80%39,334 psi62%3058 fps96.1%
SNPE Vectan SP 3<<locked>>80%37,275 psi58%2989 fps97.5%
SNPE Vectan SP 9<<locked>>98%51,111 psi80%3301 fps95%
SNPE Vectan Tubal 3000<<locked>>86%37,304 psi58%2923 fps95.5%
SNPE Vectan Tubal 5000<<locked>>90%34,011 psi53%2854 fps95.6%
Somchem S321<<locked>>88%43,700 psi68%3153 fps95%
Somchem S335<<locked>>84%34,185 psi54%2861 fps95.5%
Vihtavuori N120<<locked>>80%43,613 psi68%3051 fps100%
Vihtavuori N130<<locked>>80%35,201 psi55%2884 fps98.4%
Vihtavuori N133<<locked>>80%30,618 psi48%2769 fps96%
Vihtavuori N135<<locked>>84%29,167 psi46%2812 fps95.7%
Vihtavuori N140<<locked>>88%34,983 psi55%2930 fps95.2%
Vihtavuori N530<<locked>>92%46,369 psi73%3182 fps95.4%
Vihtavuori N540<<locked>>90%36,143 psi57%2969 fps95%
Winchester 748<<locked>>90%41,640 psi65%3150 fps95.1%
Winchester StaBALL Match<<locked>>98%50,227 psi79%3301 fps95.6%

Recommended = one of the top powders for this cartridge and bullet combination.

ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.

<<locked>> you need an access license to unlock this data.

This overview compares 91 powders for .358 Norma Mag. loaded with the .356 | 145gr | LOS RN. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,491 fps; across all powders the maximum-charge window runs from 2,067 fps to 3,491 fps. Accurate 2495 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, ADI AR 2206H reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. SNPE Vectan SP 10, ADI AR 2219, ReloadSwiss RS 40 rank at the top here: for .358 Norma Mag. with the .356 | 145gr | LOS RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, ADI AR 2208, Alliant Power Pro 2000-MR burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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